measure_fabric_shrinkage
Measure fabric shrinkage
Calculates fabric shrinkage (or growth) from a swatch measured before and after washing and drying: length change along the selvedge, width change across the fabric, and the change in area. Use the same marked distances before and after, in one unit (cm or inches). Positive percentages are shrinkage, negative are growth.
unitwidth_after必填length_after必填width_before必填length_before必填